Across
- 4. an instrument that measures cell potential by drawing electric current through a known resistance
- 5. a galvanic cell in which both compartments contain the same components, but at different concentrations
- 6. the “pull” or driving force on the electrons
- 11. a platinum conductor in contact with 1 M H+ ions and bathed by hydrogen gas at one atmosphere
- 12. a constant representing the charge on one mole of electrons: 96,485 coulombs
- 16. the potential of a half-reaction under standard state conditions, as measured against the potential of the standard hydrogen electrode
- 22. the process for producing chlorine and sodium hydroxide by electrolyzing brine in a mercury cell
- 24. a cell that uses electrical energy to produce a chemical change that would otherwise not occur spontaneously
- 25. a method in which an active metal such as magnesium, is connected to steel to protect it from corrosion
- 27. a galvanic cell for which the reactants are continuously supplied
- 28. an equation relating the potential of an electrochemical cell to the concentrations of the cell components: at 25ºC
Down
- 1. the study of the interchange of chemical and electrical energy
- 2. electrodes that are sensitive to the concentration of a particular ion
- 3. the unit of electrical potential defined as one joule of work per coulomb of charge transferred
- 7. the electrode compartment in which oxidation occurs
- 8. a battery (used in cars) in which the anode is lead, the cathode is lead coated with lead dioxide, and the electrolyte is a sulfuric acid solution
- 9. a process in which steel is coated with zinc to prevent corrosion
- 10. a U-tube containing an electrolyte that connects the two compartments of a galvanic cell, allowing ion flow without extensive mixing of the different solutions
- 13. unit of electric current equal to one coulomb of charge per second
- 14. a device in which chemical energy is changed to electrical energy
- 15. a process that involves forcing a current through a cell to cause a non spontaneous chemical reaction to occur
- 17. the electrode compartment in which reduction occurs
- 18. a disk in a tube connecting two different solutions in a galvanic cell that allows ion flow without extensive mixing of the solutions
- 19. an electrode for measuring pH from the potential difference that develops when it is dipped into an aqueous solution containing H+ ions
- 20. a group of galvanic cells connected in series
- 21. a common battery used in calculators, watches, radios, and portable audio players
- 23. the process by which metals are oxidized in the atmosphere
- 26. a cell used for electrolyzing molten sodium chloride